Pile driving attachment



Oct. 26, 1937. J B, TEMPLETON 2,096,943

PILE DRIVING ATTACHMENT Filed Aug. 29, 1935 3 Sheets-Sheet l Oct. 26,1937. J. B. TEMPLETON 2,096,943

FILE DRIVING ATTACHMENT Filed Aug. 29, 1955 3 Sheets-Sheet 2 Oct. 26,1937. J. B. TEMPLETON FILE DRIVING ATTACHMENT Filed Aug. 29, 1935 3Sheets-Sheet 3 Patented Oct. 26, 1937 UNITED STATES PATENT OFFICE JohnB. Templeton, Dallas, Tex.

Application August 29, 1935, Serial No. 38,357

3 Claims.

This invention relates to new and useful improvements in pile drivingattachments.

One object of theinvention is to provide an improved pile drivingattachment which may be connected to the outer end of the boom and whichis so mounted that the hammer leads are capable of universal adjustment,whereby an increased number of piles may be driven from a fixed positionof the supporting crane or tractor, which eliminates the necessity offrequently moving the latter from place to place.

An important object of the invention is to provide an improved piledriving attachment wherein the hammer leads are supported on the end ofthe boom at a point below their upper ends, whereby a comparativelylight capacity and short length boom may be employed for handling heavyloads to heights much higher than the boom length.

A particular object of the invention is to provide .an improved piledriving attachment having its leads secured to the upper end of a boomby a universal joint, said leads being vertically adjusted, whereby saidleads may be rotated on its vertical axis as well as swung in anydirection and to any angle with relation to the boom.

new position.

' leads when it is desired to move the same to a A further object of theinvention is to provide I an improved pile driving attachment havingleads which are so constructed and mounted as to be particularly adaptedfor use as an easily movable v gin pole.

A construction designed to carry out the invention will be hereinafterdescribed, together with other features of the invention.

The invention will be more readilyunderstood from a reading of thefollowing specification and by reference to the accompanying drawings,in

which an example of the whereinz' invention is shown, and

. Figure 1 is a diagrammatical view, showing a side elevation of a piledriving attachment attaehed to a boom and constructed in accordance withthe invention with the leads in different adjustments in dotted lines,Figure 2 is a plan view of the same showing the boom and leads invarious adjusted positions, in dotted lines,

Figure 3 is a front elevation of the same,

Figure 4 is a side elevation of the upper end of the boom and leads,

Figure 5 is a rear elevation of the same,

Figure6 is an enlarged plan view of the leads, V Figure 7 is ahorizontal, cross-sectional View, taken on the line 1-4 of Figure 4,

' Figure 8- is a horizontal, cross-sectional view,

taken on the line 8--8 of Figure 4,

Figure 9 is an enlarged vertical sectional view showing the universalmounting, I

Figure 10 is a perspective View, showing the cable or line sheaves orpulleys, only the outline of the boom and leads being shown,

' Figure 11 is a diagrammatical view, showing the mounting of the hammerline, and

Figure 12 is a similar view, showing the mounting of the pile line. j V

In the drawings, the numeral I designates an ordinary tractor cranehaving the usual boom' ll secured to its forward end. The boom extendsupwardly from the crane and is preferably constructed of angle barswhich are suitably braced. and reinforced by channel members. However,the particular structure of the boom forms no part of the invention andis, therefore, subject to variation. Further, althoughthe invention is.shown and described in connection with the tractor crane l0, it isnoted that any support, such as a derrick, or other device may beemployed for carrying the boom ll. So, too, the boom is usually not onlyswingable laterally, but is obviou'sly capable of being raised andlowered. V I In carrying out the invention, a universal'con-' nectionlZis mounted on the upper end l3 of the boom l l (Figures4, 5, and 9).This connection is shown as comprising a socket l4 having a base plate Iwhich is'welded, bolted, or otherwise fastened tovthe end of the boom. Aball I 6 is mount- ;ed in the 'socket'in' the usual way and a saddle ll'is'rnade integral with the upper end of the ball. It is, of course,obvious that theball and socket permit a free universal movement of thesaddle. 45 ll. It is here noted that although a ball and socket has beenfound satisfactory in actual practice, any suitable universal connectionmay be employed. I r

A supporting yoke, or U-shaped member IBha s, 50 its transverse sectionl9 disposed within the saddle and is secured thereto by U-bolts 20,although it maybe welded therein. The legs'Zl of the yoke extendupwardly from the end of the boom and may be of any desired length'whichis found 55 practical. The yoke is illustrated as being constructed ofpipe section which are connected together by elbows, but the yoke couldbe made of a single piece of material bent to the proper shape.

The upwardly extending legs 21 telescope into tubular guide members, orsleeves 22, and by observing Figure 4, it will be seen that said guidemembers are slidable vertically above and with relation to the upper endof the boom. The vertical hammer leads 23, which are shown as tubularpipe members extend in parallel relation to the guides 22. their upperends secured to the guides 22 by channel members 24. These channelmembers may be welded or otherwise secured to the leads and guides.Suitable angular reinforcing, bars 25 serve to brace the connectionbetween the leads and guides. The lower end of the leads areconnectedtogether by channel members 24' which are similar to themembers 24. Suitable bracing 29 reinforces the lower end of the leads23.

The leads are sufliciently spaced from the tubular members and are alsospaced from each other to permit a free sliding movement of the hammer27 vertically on the leads. The hammer is provided with verticalrecesses 21' for receiving the leads. It is noted that the leads are ofsuch length that when said leads are resting on the ground, the upperend of said leads is above the end of the boom. The point of suspensionof said leads is below the upper end of said leads, which permits ashorter boom to be used in handling longer leads. Further, since theleads are resting on the ground or other support, the load is taken offthe'boom which permits a comparatively light boom to be employed forheavy work.

From the above, it will be seen that the leads as, being fastened tothetubular guides 22 by the transverse, channel members 24, are capableof a vertical adjustment, whereby they may be raised or lowered asdesired. The guides have the legs 2| of the yoke l9 telescoping thereinand since the yoke is universally adjustable, due to its being carriedby the ball and socket attachment, it will be seen that the leads may berotated on the vertical axis of said attachment and may also be swung toany desired angle universally with relation to the boom; as clearlyshown by the dotted lines in Figures 1, 2, and 3. With this arrangement,it is not only possible to employ a lighter and shorter boom, withlonger leads, but it is also possible to drive piling at any angle or atany point within the swinging radius of the boom.

The cab I0? of the crane has the usual cable or line drums 30 and 3|rotatably mounted therein. The drum 30 carries the hammer line A whichvextends upwardly therefrom and passes over a pulley or sheave 32 whichis mounted on the upper end of the boom (Figure 10). After passing overthis pulley, the line extends downwardly and around the under side ofone of the grooves of a double sheave 33 which is journaled h in abracket 34 secured to the rear of one'of the channel members 24' (Figure4).

The line A then passes upwardly over a-sheave 35 which is mounted .in aclevis or other obviously suitable supporting member suspended from theupper end of the boom. ,From the sheave 35 the line extends downwardlyaround the second groove of the double sheave 33 and then upwardly overan idler pulley 36 which is journaled on a transverse pin 31 fastened inthe top channel The leads are spaced from and have I member 24. From theidler 36, the line passes over one of the grooves of a double pulley 38which is journaled at the forward end of said top channel member, andthen downwardly around one of the grooves in another double sheave 39,which is journaled in a clevis 4|] which extends upwardly from, and issecured to, the hammer 21.

From the groove of said double sheave 39, the line A passes upwardlyover the second groove of the double pulley 33, and then downwardlyaround the second groove of the sheave 39 which is carried by thehammer. The end of the line A is then extended upwardly from this doublesheave and is suitably fastened to the top frame member 24 of the leads23.

By passing the line A over the various pulleys and sheaves, as shown,the power applied to the single line is increased to the point where itcan carry a much greater load. It will be obvious that since one end ofthe line is made fast to the frame at the top of the leads and alsosince the line passes over the double sheave 39, which moves with thehammer 21, that when the drum 39 is rotated to permit slack in the lineA, the weight of the hammer will immediately cause the same to falldownwardly between the leads. It will further be seen that when the drumis rotated in an opposite direction, the line A is tightened to draw thehammer upwardly.

If it is desired to raise the leads 23 from the ground, as is necessaryin moving the same from one position to another, it is only necessary tolower the hammer and anchor the same to the leads in some suitablemanner, not shown. Then when the line A is wound on the drum, the hammerand leads will be raised together, due to uplift applied at 35 throughthe proper arrangement of sheaves and lines. The boom may then be swungto properly position said leads.

For steadying the leads 23 and also for Swinging the lower ends thereofto a proper position, the piling line B is provided. This line is woundaround the drum 3! and is controlled thereby. The line B extendsupwardly from said drum and passes behind an idler 4I which is journaledon the rear of one of the transverse channel members 24 above the pivotof the leads on boom. The line then extends upwardly and over a pair ofsheaves '42 and 43 which are mounted between the upper channel member24, and then downwardly contiguous to the leads 23. Its lower end issuitably secured to the leads and it is obvious that by winding orunwinding said line on its drum, the swinging of the lower leads 23 iscontrolled and the eccentricload of the hammer and leads can be-ofisetso that the leads can be pluinbed, or vertically alined before settingon v the ground. It is pointed out that by detaching the lower end ofthe line B from the leads, the line may be utilized for its primarypurpose, which is to'pick up the piling (not shown), to place saidpiling into position for driving.

From the above, it will be seen that the pile driver is simpleinconstruction and adaptable to any type of work. The leads areuniversally .adjustable which permits. piling to be driven in piling maybe driven at such angle. The lower end of the leads rest upon the groundwhich relievesthe universal. connection and boom of the 'load, whereby acomparatively light boom may be used in heavy work.

The'suspension of the leads from a point be low their upper ends allowsa short boom to handle longer leads which results in being able to use asmaller crane thereby saving in operating expense.

In actual operation, when shifting the leads 23 into position, saidleads are just lifted from the ground and the lower end of the leads arethen 1 manually swung into the desired position after which said leadsare lowered to rest on the ground. The line B is used to offset theeccentric load and pull the bottom of the leads out to a desiredlocation. It is noted that if desired, the

structure may be utilized as a gin pole for, hav ing a universaladjustment in all directions as Well as means for vertically moving thelower end thereof, it is particularly adapted for such use. It is againnoted that the single line A, due to its mounting on the various sheavesand pulleys, is capable of sustaining an increased load and thus, may beutilized to lift the leads, as well as the hammer.

What I claim and desire to secure by Letters Patent, is:

1. A pile driving attachment for a boom comprising, an elongated frameincluding opposed longitudinal hammer leads, said frame having opposedlongitudinal guide members at one side thereof, a supporting yokeincluding longitudinal members on which said guide members are slidablymounted, and a single universally swiveled connection between saidsupporting yoke and the end portion of the boom whereby the hammer leadframe is swingable in any direction relative to the boom.

2. A pile driving attachment for a boom comprising, a supporting yokeuniversally and supportingly swiveled on the end portion of the boom,said yoke having a parallel pair of longitudinal supporting members, anda hammer lead frame including longitudinal tubular supporting guidemembers, said guide members slidably sleeved on said longitudinalsupporting members of said yoke.

3. A pile driving attachment for a boom comprising a supporting yokeuniversally and supportingly swiveled on the end portion of the boom,said yoke having a parallel pair of longitudinal supporting members, ahammer lead frame including longitudinal tubular supporting guidemembers, said guide members slidably sleeved on said longitudinalsupporting members of said yoke, a hammer slidably supported on saidhammer lead frame, a cable line idler pulley on the boom near the endthereof, a similar pulley on said hammer lead frame near the upper endthereof, a pair of cable loop pulleys one on said hammer lead framebelow said yoke and the other on the boom below the idler pulley andcorrelated to said idler pulley on the boom, a second pair of cable looppulleys one of which is mounted on said hammer lead frame in correlationto said idler pulley on the upper portion of said hammer lead frame andthe companion pulley of second said cable loop pair being attached tothe hammer, and a hammer cable line leading from a power source oversaid idler pulley on the boom, thence multiple looped about said lowerpair of cable loop pulleys one of which is on the hammer lead frame, andthe other on the boom and up over the idler pulley on the upper endportion of the hammer lead frame andthence multiple looped about saidupper pair of cable loop pulleys and finally secured at its upper end tothe adjacent upper end portion of the hammer lead frame, said hammercable line adapted under power at the source to lift the hammer when thelatter is free to move on the hammer leads and whereby the hammer dropswhen the cable line is released from power at the source, and whereby,also, when the hammer is locked against movement on the hammer leadssaid cable line lifts and lowers the hammer lead frame.

JOHN B. TEMPLETON. I

